System removing entrapped gas from an engine cooling system
AssigneeUView Ultraviolet Systems, Inc.
InventorsThomas L. Klamm, Robert D. Braun
Life of this patent
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Abstract
An apparatus includes a closed container having an inlet connected to a radiator of an engine cooling system. An outlet of the container is coupled to the suction port of a venturi that has an inlet port connected by a solenoid valve to a source of pressurized air. A controller opens the solenoid valve for a given interval whenever the engine is turned off. That action creates a negative pressure in the container which bleeds gas from the radiator. Any coolant that also is removed from the radiator is collected in the container.
Claims18
An apparatus for removing gas from a cooling system of an engine, said apparatus comprising:
- a closed collection container having an inlet and an outlet;
- drain conduit connecting the cooling system to the inlet of the closed collection container;
- a source of suction coupled to the outlet of the closed collection container and responding to a control signal by creating a given pressure in the closed collection container that is less than pressure within the cooling system, thereby drawing the gas into the closed collection container from the cooling system;
- a controller which produces the control signal;
- and
- a transducer that senses pressure in the cooling system and produces a pressure signal,
- wherein the controller produces the control signal in response to the pressure signal.
An apparatus for removing gas from a cooling system of an engine wherein the cooling system has a radiator with an outlet, said apparatus comprising:
- a closed collection container having an inlet and an outlet;
- an inlet valve coupling the inlet of the closed collection container to the cooling system;
- a controller connected to the inlet valve and the outlet valve, and controlling opening and closing of the valves in response to an operating parameter of the engine;
- and
- a transducer that senses pressure in the cooling system and produces a pressure signal,
- wherein the controller opens the inlet and outlet valves in response to the pressure signal.
Dependencies are inferred from the claim text.